INTERNALLY GAS REGULATED FUEL CELL
    2.
    发明申请
    INTERNALLY GAS REGULATED FUEL CELL 失效
    内部气体调节燃料电池

    公开(公告)号:US20110229779A1

    公开(公告)日:2011-09-22

    申请号:US13068750

    申请日:2011-05-19

    IPC分类号: H01M8/04 H01M8/06

    摘要: A fuel cell includes a membrane electrode assembly (MEA) and at least one bipolar plate having an anode-side gas distributor structure for distributing anode reactants, a cathode-side gas distributor structure for distributing cathode reactants, and a guide passage structure for distributing a cooling medium. At least one of the anode-side gas distributor structure and the cathode-side gas distributor structure is divided into at least a first field and a second field, each of the first and second fields having an entry port and an exit port for the reactants. In addition, a method for such a fuel cell includes passing a reactant into an entry port of the first field and out of an exit port of the first field, mixing the reactant with a fresh reactant so as to form a mixture, and passing the mixture into the entry port of the second field.

    摘要翻译: 燃料电池包括膜电极组件(MEA)和至少一个具有用于分配阳极反应物的阳极侧气体分配器结构的双极板,用于分配阴极反应物的阴极侧气体分配器结构和用于分配阴极反应物的引导通道结构 冷却介质。 阳极侧气体分配器结构和阴极侧气体分配器结构中的至少一个被分成至少第一场和第二场,第一和第二场中的每一个具有用于反应物的入口和出口 。 此外,这种燃料电池的方法包括使反应物进入第一场的入口并离开第一场的出口,将反应物与新鲜的反应物混合以形成混合物,并使 混合进入第二场的入口。

    Internally gas regulated fuel cell

    公开(公告)号:US07972748B2

    公开(公告)日:2011-07-05

    申请号:US10523067

    申请日:2003-07-02

    IPC分类号: H01M8/04 H01M2/40 H01M8/24

    摘要: A fuel cell includes a membrane electrode assembly (MEA) and at least one bipolar plate having an anode-side gas distributor structure for distributing anode reactants, a cathode-side gas distributor structure for distributing cathode reactants, and a guide passage structure for distributing a cooling medium. At least one of the anode-side gas distributor structure and the cathode-side gas distributor structure is divided into at least a first field and a second field, each of the first and second fields having an entry port and an exit port for the reactants. In addition, a method for such a fuel cell includes passing a reactant into an entry port of the first field and out of an exit port of the first field, mixing the reactant with a fresh reactant so as to form a mixture, and passing the mixture into the entry port of the second field.

    Fuel cell stack
    4.
    发明授权
    Fuel cell stack 有权
    燃料电池堆

    公开(公告)号:US07335437B2

    公开(公告)日:2008-02-26

    申请号:US10415786

    申请日:2001-11-06

    IPC分类号: H01M8/02

    摘要: A fuel cell stack for gaseous fuel includes a membrane electrode unit and a distribution plate including a channel area having gas channels for distributing the anode gas and the cathode gas to the membrane electrode unit and a port area for supplying the anode gas and the cathode gas into the channel area. Additional connecting channels discharge from the port areas along the gas channels so that unused anode gas or cathode gas is locally meterable from the port areas into the gas channels via these connecting channels.

    摘要翻译: 一种用于气体燃料的燃料电池堆包括膜电极单元和分布板,该分布板包括具有用于将阳极气体和阴极气体分配到膜电极单元的气体通道的通道区域和用于供应阳极气体和阴极气体的端口区域 进入渠道区域。 附加的连接通道沿着气体通道从端口区域排出,使得未使用的阳极气体或阴极气体可以通过这些连接通道从端口区域可进入气体通道。

    Matching of the local area-specific gas flows in PEM fuel cells
    6.
    发明授权
    Matching of the local area-specific gas flows in PEM fuel cells 失效
    在PEM燃料电池中匹配局部特定气体流量

    公开(公告)号:US07465513B2

    公开(公告)日:2008-12-16

    申请号:US10852658

    申请日:2004-05-25

    IPC分类号: H01M8/00

    摘要: A passage structure for PEM fuel cells is configured locally differently in order to adapt the flow of gas on the membrane electrode assembly (MEA). Starting from the cathode entry port, the active gas volumetric flow per unit area on the MEA is locally varied by changing the number and/or cross section of the gas-carrying passages, so that the flow decreases toward the cathode exit port. Suitable configuration of the passage structure according to the invention allows the steam partial pressure to be optimally matched to the local conditions. The mass conversion is improved in these regions as a result without the electrolyte's drying out. At locations in the flowfield with a low gas humidity, the measures according to the invention (increased number of passages or passage width) significantly reduce the flow velocity. As a result, the transfer of water from the MEA to the gas flow is reduced and drying of the MEA is diminished.

    摘要翻译: 用于PEM燃料电池的通道结构被局部地配置以便适应膜电极组件(MEA)上的气体流。 从阴极入口开始,MEA上每单位面积的活性气体体积流量通过改变气体输送通道的数量和/或横截面而局部变化,使得流向阴极出口减少。 根据本发明的通道结构的合适构造允许蒸汽分压与局部条件最佳地匹配。 结果,在这些区域中质量转化率得到改善,没有电解质干燥。 在具有低气体湿度的流场中的位置处,根据本发明的措施(增加的通道数或通道宽度)显着降低了流速。 结果,水从MEA向气流的转移减少,MEA的干燥减弱。

    Internally gas regulated fuel cell
    7.
    发明授权
    Internally gas regulated fuel cell 失效
    内部气体调节燃料电池

    公开(公告)号:US08039170B2

    公开(公告)日:2011-10-18

    申请号:US13068750

    申请日:2011-05-19

    IPC分类号: H01M8/04 H01M2/40 H01M8/06

    摘要: A fuel cell includes a membrane electrode assembly (MEA) and at least one bipolar plate having an anode-side gas distributor structure for distributing anode reactants, a cathode-side gas distributor structure for distributing cathode reactants, and a guide passage structure for distributing a cooling medium. At least one of the anode-side gas distributor structure and the cathode-side gas distributor structure is divided into at least a first field and a second field, each of the first and second fields having an entry port and an exit port for the reactants. In addition, a method for such a fuel cell includes passing a reactant into an entry port of the first field and out of an exit port of the first field, mixing the reactant with a fresh reactant so as to form a mixture, and passing the mixture into the entry port of the second field.

    摘要翻译: 燃料电池包括膜电极组件(MEA)和至少一个具有用于分配阳极反应物的阳极侧气体分配器结构的双极板,用于分配阴极反应物的阴极侧气体分配器结构和用于分配阴极反应物的引导通道结构 冷却介质。 阳极侧气体分配器结构和阴极侧气体分配器结构中的至少一个被分成至少第一场和第二场,第一和第二场中的每一个具有用于反应物的入口和出口 。 此外,这种燃料电池的方法包括使反应物进入第一场的入口并离开第一场的出口,将反应物与新鲜的反应物混合以形成混合物,并使 混合进入第二场的入口。

    Internally gas regulated fuel cell
    8.
    发明申请
    Internally gas regulated fuel cell 有权
    内部气体调节燃料电池

    公开(公告)号:US20060014071A1

    公开(公告)日:2006-01-19

    申请号:US10523067

    申请日:2003-07-02

    IPC分类号: H01M8/02 H01M8/04

    摘要: A fuel cell includes a membrane electrode assembly (MEA) and at least one bipolar plate having an anode-side gas distributor structure for distributing anode reactants, a cathode-side gas distributor structure for distributing cathode reactants, and a guide passage structure for distributing a cooling medium. At least one of the anode-side gas distributor structure and the cathode-side gas distributor structure is divided into at least a first field and a second field, each of the first and second fields having an entry port and an exit port for the reactants. In addition, a method for such a fuel cell includes passing a reactant into an entry port of the first field and out of an exit port of the first field, mixing the reactant with a fresh reactant so as to form a mixture, and passing the mixture into the entry port of the second field.

    摘要翻译: 燃料电池包括膜电极组件(MEA)和至少一个具有用于分配阳极反应物的阳极侧气体分配器结构的双极板,用于分配阴极反应物的阴极侧气体分配器结构和用于分配阴极反应物的引导通道结构 冷却介质。 阳极侧气体分配器结构和阴极侧气体分配器结构中的至少一个被分成至少第一场和第二场,第一和第二场中的每一个具有用于反应物的入口和出口 。 此外,这种燃料电池的方法包括使反应物进入第一场的入口并离开第一场的出口,将反应物与新鲜的反应物混合以形成混合物,并使 混合进入第二场的入口。

    Matching of the local area-specific gas flows in PEM fuel cells
    9.
    发明申请
    Matching of the local area-specific gas flows in PEM fuel cells 失效
    在PEM燃料电池中匹配局部特定气体流量

    公开(公告)号:US20050019647A1

    公开(公告)日:2005-01-27

    申请号:US10852658

    申请日:2004-05-25

    摘要: A passage structure for PEM fuel cells is configured locally differently in order to adapt the flow of gas on the membrane electrode assembly (MEA). Starting from the cathode entry port, the active gas volumetric flow per unit area on the MEA is locally varied by changing the number and/or cross section of the gas-carrying passages, so that the flow decreases toward the cathode exit port. Suitable configuration of the passage structure according to the invention allows the steam partial pressure to be optimally matched to the local conditions. The mass conversion is improved in these regions as a result without the electrolyte's drying out. At locations in the flowfield with a low gas humidity, the measures according to the invention (increased number of passages or passage width) significantly reduce the flow velocity. As a result, the transfer of water from the MEA to the gas flow is reduced and drying of the MEA is diminished.

    摘要翻译: 用于PEM燃料电池的通道结构被局部地配置以便适应膜电极组件(MEA)上的气体流。 从阴极入口开始,MEA上每单位面积的活性气体体积流量通过改变气体输送通道的数量和/或横截面而局部变化,使得流向阴极出口减少。 根据本发明的通道结构的合适构造允许蒸汽分压与局部条件最佳地匹配。 结果,在这些区域中质量转化率得到改善,没有电解质干燥。 在具有低气体湿度的流场中的位置处,根据本发明的措施(增加的通道数或通道宽度)显着降低了流速。 结果,水从MEA向气流的转移减少,MEA的干燥减弱。